CVE-2021-34752

Cisco Firepower Threat Defense Command Injection Vulnerabilities

MEDIUM

6.7

CVSS Score

Published: November 15, 2024 at 04:14 PM UTC

Updated: June 17, 2026 at 03:56 AM UTC

1 product affected across 1 vendorFirepower Threat Defense

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Severity

MEDIUM6.7

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

A vulnerability in the CLI of Cisco FTD Software could allow an authenticated, local attacker with administrative privileges to execute arbitrary commands with root privileges on the underlying operating system of an affected device.  This vulnerability is due to insufficient validation of user-supplied command arguments. An attacker could exploit this vulnerability by submitting crafted input to the affected commands. A successful exploit could allow the attacker to execute commands with root privileges on the underlying operating system. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Firepower Threat Defense · Cisco

60%

v < 6.4.0.136.5.0 ≤ v < 6.6.56.7.0 ≤ v < 6.7.0.37.0.0 ≤ v < 7.0.16.2.3 6.4.0.6 6.5.0 6.6.0.1 6.7.0 7.0.0

Affected range stops below 6.4.0.13, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.6.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.7.0.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: [email protected]

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-cmdinject-FmzsLN8

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.7MEDIUMcisco

Attack Vector: LOCAL
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-20

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